Acoustic emission location based on diamond FBG sensor array

被引：0
|
作者：
Lv S. [1 ,2 ]
Geng X. [2 ]
Zhang F. [2 ]
Xiao H. [2 ]
Jiang M. [2 ]
Cao Y. [2 ]
Sui Q. [2 ]
机构：
[1] Institute of Marine Science and Technology, Shandong University, Jinan
[2] School of Control Science and Engineering, Shandong University, Jinan
来源：
| 2017年 / Chinese Society of Astronautics卷 / 46期
关键词：
Acoustic emission technology; Cross-correlation; FBG; Time difference location; Wavelet transform;
D O I：
10.3788/IRLA201746.1222005
中图分类号：
学科分类号：
摘要：
Acoustic emission(AE) technology is an important method for structural damage detection, and AE source location is the most important part of the damage detection. The TDOA location method has the advantages of fast, high efficient and more accurate. An acoustic emission location system based on diamond Fiber Bragg Grating (FBG) sensor array was designed. Wavelet transform and traditional threshold method were used to extract feature signal, and the cross-correlation method was used to obtain the arrival time difference between different sensors. Then, the possible AE source was determined by solving nonlinear equations of the geometric model. Finally, the actual AE source was determined according to the feature of time difference. This location system can effectively avoid the pseudo AE source. The 10 groups of test data were carried out in the monitoring area with the diagonal of 48 cm × 48 cm of the aluminum alloy plate, and the average error was 1.29 cm. © 2017, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
引用
收藏
相关论文
共 11 条
  • [1] Hu C., Yang G., Huang Z., Et al., AE technology and application in the test, Metrology & Measurement Techique, 35, 6, pp. 1-3, (2008)
  • [2] Yang R., Ma T., A study on the application of acoustic emission technique, Journal of North University of China(Natural Science Edition), 27, 5, pp. 456-461, (2006)
  • [3] Jin Z., Liu S., Geng R., Et al., Location of acoustic emission source on curved surfaces and three-dimension structures, Nondestructive Testing, 24, 5, pp. 205-211, (2002)
  • [4] Aljets D., Chong A., Wilcox S., Et al., Acoustic emission source location on large plate-like structures using a local triangular sensor array, Mechanical System and Signal Processing, 30, 7, pp. 91-102, (2012)
  • [5] Surgeon M., Wavers M., One sensor linear location of acoustic emission events using plate wave theories, Materials Science and Engineering, A265, 1-2, pp. 254-261, (1999)
  • [6] Mendoza E., Prohaska J., Kempen C., Et al., In-flight fiber optic acoustic emission sensor (FAESenseTM) system for the real time detection, localization, and classification of damage in composite aircraft structures, Optical Sensors and Interconnect for Harsh Environment, 8720, 29, (2013)
  • [7] Takuma M., Hisada S., Saitoh K., Et al., Acoustic emission measurement by fiber Bragg grating glued to cylindrical sensor holder, Advance in Material Science & Engineering, 2014, (2014)
  • [8] Fu T., Zhang Z., Liu Y., Et al., Development of an artificial neural network for source localization using a fiber optic acoustic emission sensor array, Structual Health Monitoring, 14, 2, pp. 168-177, (2015)
  • [9] Sai Y., Jiang M., Sui Q., Et al., Acoustic emission location based on FBG array and MVDR algorithm, Optics and Precision Engineering, 23, 11, pp. 3012-3017, (2015)
  • [10] Shen G., Geng R., Liu S., Acoustic emission source location, Nondestructive Testing, 24, 3, pp. 114-117, (2002)
12